DDE example

This example uses Visual Basic for Applications.

Search for	Example	Results
A single word	`cat`	Topics that contain the word "cat". You will also find its grammatical variations, such as "cats".
A phrase. You can specify that the search results contain a specific phrase.	`"cat food"` (quotation marks)	Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase.

Search for	Operator	Example
Two or more words in the same topic	`AND` `and` `+` (plus symbol) `&` (ampersand)	`cat AND dog` `"cat food"+milk` `"cat food"&"dog food"`
Either word in a topic	`OR` `or` `\|` (pipe)	`cat OR dog` `cat \| dog`
Topics that do not contain a specific word or phrase	`NOT` `not` `!` (exclamation point)	`NOT cat` `! dog`
Topics that contain one string and do not contain another	`^` (caret)	`cat ^ mouse`
A combination of search types	`( )` parentheses	`cat + (dog \| mouse)` `cat \| dog + (! mouse)`

Note: The Service Manager server must be running in order for the following example to work.

The format of the Service Manager execute command string for system events is:

SystemEvent( event name, parameter name, parameter value, ...)

Where event name corresponds to the event name in the Service Manager SystemEvents table and parameter name / value pairs are known to the RAD program.

Sub ReceiveInteraction() channel = DDEInitiate("Service Manager", "Actions") DDEExecute channel, "[SystemEvent(""ReceiveInteraction"", ""Caller Name"", ""KENTNER"" )]" DDETerminate channel End Sub

The example above:

Initiates a conversation with the Service Manager system.

Executes a DDE command starting the system event ReceiveInteraction, passing the parameter name Caller Name with the parameter value of Kentner.

Terminates the conversation.

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